Cup beater



April 16, 1929. BORDWELL CUP BEATER Filed May 21, 1927 Patented Apr. 16, 1929., r v

LAVERN BORDWELL, or new YORK, 1v.-Y.

our enema.

Application filed my .21,

This invention relates to improvements in cup heaters. The const1'uction,inode of operation and'objects of the improvement will be specifically pointed out hereinafter.

The primary object of this invention is is very much increased shaping the eight;

blades so that in operation their upper-portions interlace as well as their lower portions,

and in such heaters, due tot-he small space of the container, it is necessary to havethe blades close together, and the blades instead of interlacing only at their lower ends, they must interlace throughout their length in order to produce the proper beating eii'ect on the material in thesmallcup or tumbler container. V

Although applicant has been for many f .r years the manufacturer of eight-blade beaters, and his employees have for years been -working from time to t me with the end 1n View of discovering how to make an eight- 7 comprising my improvements.

" blade beaterof anarrow'type to prevent interference of the eight blades, appllcant has only comparatively recently discovered the end in view.

.a'slightly larger lower end than upper end, combined with a U-shaped rod having-its sides parallel from end to end, the blades will just miss each other at their lower portion,

' thus producing a construction which rotates p I p drivewheel 1s jOUT-llttlGCl inany sultable inanwith clea'rness and. interference is prevented." 1 I In order to prevent interference between the blades in a heater of the type above reo1 the blades ferred to, I find it desirable: to construct the blades so that they will hold their shape under the strain to which they are subjected in use,

andjthus prevent them froin'interiering. In the present construction the above end is accompl shed by'tornnng the blades with 'a longitudinal corrugation whereby they are I I, call attention first to the fact, that the U- strengthenedso as to hold their shape.

Figure 1. v present improvement which accomplishes the It has been discovered by applicant that by making the eightblades of the two sepaf H rate bea'ters substantially straight from their the line 4 4 of Figure 3. upper" to their lower ends, so that theyhave '1 1927.; ,SeriaI No. 193,176.

It is also found advantageous for "several reasons to have the indentation of this corrugation on the outer sides of the blades while the indentation projects inwardly. It is found that this prevents spattering or' splashingoi' the material: being operated upon, and

especially preventslsmall quantities of the material from spattering out of a'cup or tumbler since the corrugation causes it to pour sidew se' atthe lower ends of the corrugat1ons. The corrugations strengthen the blades of the beater; and the indentation eX- I tending inwardly, makes the device easy to he cleaned. It will be observed thatfby maklng the corrugations inthe upper or collateral'portion of the blades extend inward, the indentation is exposed outside as the blades revolve,';so that the corrugations are readily clcanechwhiclr would not be true if the in-- dentations were reversed and which would place it always inside where'access toit would be extremelyd flicult.

Applicant'is aware that several attempts;

have been p'reviously'inade to' constructfa' beater adapted for use in ,a' tumbler, cup or similar dev1ce,fbut"so tar as applicant is aware, none of theni ihave heretofore been successful.

." In the accon'ipanying drawings: V

Figure 1 is an .elevation'showing a b eate-r l Figure 2 is a V ew taken at right anglesto, M

Figure 3 is a longitudinal section taken through the central portion of one of the, beater blades showing the said corrugation.

Figure at is a horizontalsectional. View on This invention as has alreadybeen stated,

relates specifically to certain improvements 'in the beater bladesand in the rod on which 7 these blades are supported. Referring to the accompanying drawings, 1 is a drive wheel to whichasuitable handle 2 is attached. This ner at 2upon a handle 8. Usually in g n- 7 structing my presentimprovements, the'lower frame fl, to'whioh the upperlends 50f the end of the handle.

Turning now to the present improvement,

en'd of the handle is formed into all-shape shaped rod 6 has its sides made parallel from end to end and that the said frame is very narrow. This is found to be desirable for reasons hereinafter referred to. r

In the drawings a tumbler 7 is show in dotted lines and the device shown in place within it. v

The heaters- 8 each comprise two sets of blades which are so'constructed that it is adapted to be operative in a tallnarrow receptacle, and atthe same time it may also be operated in a cup.

Attention is especially directed to the construction of the beater blades 9 that compose the heaters 8. It will be "observed from the drawings that the beater blades 9 extend in substantially a straight'line from their upper to their lower ends lO, their lower ends 10 gated, narrow, truncated cone shape from end to end. Applicant findsthat this construction-is particularly adapted to fit in a (narrow receptacle, and furthermore that the said blades will not interlerefrom end to end forming them in the abovcshape. By this itjis meant to convey that the bladeshave an angle from end to ,end which just enables them to escape each other, especiallyattheir lower ends, leavingthem free to rotate without any pounding action whatever. Applicant believes he is the first one to so con- .struct the beaters that the above results are accomplished.

, blades. This formation enables the device to "Furthermore in carrying out the present improvement, the blades are strengthened against lateral. displacement, and thus prevented from getting out of shape and thus interfering with each other by torming in thesaid blades a longitudinalcorrugation 12 that is placed in the blade intermediate its upper narrow end and its enlarged lower portion These corrugations are depressed 1n the blades from their outer to their inner sides, thus forming the corrugation with its concave portion 1 1 on the outer s1de of the be readily cleaned, as wil-lbe understood,

which would not be the case if the corruga "tion extended from the inner to the outer side of the said blades.

' Since the heaters revolve very'r-apidly owingto the relative large size of the drive wheel 1 and the number'of cogs therein and the relatively small pinlons ll, it is desirable that splashing and spattering'ofthe material being operated upon outside of the receptacle 7 be prevented. As the beater blades revolve, the angular wall 15 of the corrugation 12 gathers the materiahcausing it to flow longitudinally therein and pass out their lower 'ends'15, and thus prevent the material from slopping over the outside of the receptacle containing it, and also prevents small quantitles of the materialfrom being thrown from the cup, the same'flowing longitudinally through the corrugations instead of being splashed outside of the cup. V

Therefore it will be observed that the corrugations strengthen the blades and-prevent interference; that the manner of forming these corrugations makes the device readily cleaned; that the corrugations and the long narrow tapered shape of the blades prevents the material from splashing or slop'ping out-* side of the receptacle; the whole structure makes a machine that' will be very satistactory in its use. m

From the above construction it will be observed that I produce aneight-blade beater, the blad s oi the-beater shaped to form a long narrow beater with its upper endnnarrower than its lower end; whereby an eightblade heater is produced that will not pound or interfere in any manner in operation.- It

will also be observed that by constructing the blades of the heaters specifically as here- I in described, they maintain their shape and prevent interference which would otherwise occur. r Thave explained my present improvement in specific detailyet I desire itfunderstood that changes may be made therein without departing fro'm the present improvement, so

long as they come within a fair interpretationof the appendedclaiins.

Having thus described my invention, what I I desire to claim andsecure by Letters Pat entisz 1. A beater for the purpose described comprising two sets of beater blades each comprising four blades, each blade a narrow bottom portion and extending in a" straight line substantially from end .to end and thetwo sets. arranged side by side and the blades interlacing substantially throughout their length, andmean's for operating the said blades, substantially as described.

' 2. A beater tor the purpose described com-V. prising two sets of beater'blades eachset comprising four blades and all of the'blade s having narrow bottom portions and extending forward in a straight line substantially from end'to end whereby the beater blades interlace substantially through their length and each blade provided with a longitudinal, corrugation beginning substantially at the'center of the blade and extending upward, the

said blades interlacing substantially throughout their length, for the purpose set forth.

' 3. A beater for the purpose describedcomprising two sets of beater blades each set oomlongitudinal corrugation beginning suhstanprlsing four blades, the lower ends of the tially at the center of the blade and extend"- blades formed narrow and the blades extending upward, and means for rotating the said 1o ing upward in straight lines substantially blades, for the purpose set forth.

6 from end to end, the blades interlacing sub- In testimony whereof I hereunto afiix my 7 stantially throughout their length and each' signature, I 1 blade provided with an inwardly extending 1 LAVERNBORDWELL. 

